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Score ______________ / 30 Quiz #7
(return to Turf
Home or Old Exams)
Multiple choice. (12 pts.) Please read these carefully. Only one response
correctly answers the question, or completes the statement. Circle the corresponding
letter (a, b, c, d, or e). 1. A group of pesticides known for their long persistence in the environment: a. organophosphates b. organic halogens (e.g., chlorinated hydrocarbons) c. carbamates d. wettable powders e. nematicides 2. LD50 is used to measure: a. chronic toxicity b. half-life c. mobility in the soil d. solubility e. none of the above 3. Stickers and spreaders are examples of: a. biological control b. pesticide formulations c. wetting agents d. adjuvants e. none of the above 4. What is the best source of information on the right application rate and manner of applying a pesticide? a. a college textbook b. the MSDS c. University of Florida recommendations d. the label e. none of the above 5. IPM, integrated pest management, is now often called other things, e.g., ILM, integrated landscape management. This is because was once, but is no longer, a field of primarily a. weed scientists b. plant breeders c. entomologists d. plant pathologists e. regulatory personnel 6. IPM, integrated pest management, is now often called other things, e.g., ILM, integrated landscape management. This is because was once, but is no longer, a field of primarily a. weed scientists b. plant breeders c. entomologists d. plant pathologists e. regulatory personnel Short answer. (13
pts.) 7. List four ways a pesticide can leave a turfgrass area (4
pts) _________________________________, _______________________________ _________________________________,
_______________________________ 8. What are four components of Integrated Pest Management?
(4 pts.) _________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________ Conversion problem.
(5 pts.) Set up the problem, based on what's given and what's asked
for, multiply by the necessary identities, and convert the units of measurement by
cancelling. Do not do any arithmetic. You will not be graded on the answer, only on
the setup and conversion. 9. You have been asked to spray Dexol Dursban Lawn Insect
Killer, active ingredient chlorpyrifos 6.7%, to kill chinch bugs. The label rate is 1 pint
formulation per 2666 square feet. What is the rate of application in terms of active
ingredient, pounds per acre? (For this problem assume, for both the formulation and chlorpyrifos, that 1 pint=16 ounces liquid = 1 pound.) |